Saltar navegación principal
Normas ASTM – AENOR
ASTM D3612-02e1

ASTM D3612-02e1

Standard Test Method for Analysis of Gases Dissolved in Electrical Insulating Oil by Gas Chromatography

Fecha:
2010-12-31 /Historical
Superseeded by:
Significance and Use:

Oil and oil-immersed electrical insulation materials may decompose under the influence of thermal and electrical stresses, and in doing so, generate gaseous decomposition products of varying composition which dissolve in the oil. The nature and amount of the individual component gases that may be recovered and analyzed may be indicative of the type and degree of the abnormality responsible for the gas generation. The rate of gas generation and changes in concentration of specific gases over time are also used to evaluate the condition of the electric apparatus.

Note 1—Guidelines for the interpretation of gas-in-oil data are given in IEEE C57.104.

Scope:

1.1 This test method covers three procedures for extraction and measurement of gases dissolved in electrical insulating oil having a viscosity of 20 cSt (100 SUS) or less at 40°C (104°F), and the identification and determination of the individual component gases extracted. Other methods have been used to perform this analysis.

1.2 The individual component gases that may be identified and determined include:

HydrogenH2
OxygenO2
NitrogenN2
Carbon monoxideCO
Carbon dioxideCO2
MethaneCH4
EthaneC2H6
EthyleneC2H4
AcetyleneC2H2
PropaneC3H8
PropyleneC3H6

1.3 WarningMercury has been designated by EPA and many state agencies as a hazardous material that can cause central nervous system, kidney, and liver damage. Mercury, or its vapor, may be hazardous to health and corrosive to materials. Caution should be taken when handling mercury and mercury-containing products. See the applicable product Material Safety Data Sheet (MSDS) for details and EPAs website (http://www.epa.gov/mercury/faq.htm) for additional information. Users should be aware that selling mercury or mercury-containing products, or both, in your state may be prohibited by state law.

1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. For specific warning statements see 6.1.8, 30.2.2 and 30.3.1.

Keywords:
capillary columns; combustible gases; dissolved gases; gases; headspace; insulating oil; oil; transformer oil; Dissolved gases; Electrical insulating oils; Gas chromatography (GC)--insulating materials/applications; Gas content
74,79
Idioma Formato

Formato físico y digital

Nota: Precios sin IVA ni gastos de envío

Añadir a la cesta